About: http://webisa.webdatacommons.org/132122660

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The most common components of boiler deposits are calcium phosphate, calcium carbonate, magnesium hydroxide, magnesium silicate, various forms of iron oxide, silica absorbed on the previous mentioned precipitates and alumina.
http://www.w3.org/ns/prov#wasQuotedFrom	sulphuric-acid.com